teresacast305 teresacast305

26-01-2018
Mathematics

contestada

Marisa's car gets an average of 28 miles per gallon of gas. she plans to drive 200 miles today and 220 miles tomorrow. how many gallons of gas should she expect to use in all?

Respuesta :

26-01-2018

Cross multiply 28miles/gallon = 420 miles/x x = 15 gallons

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Cubanito1700 Cubanito1700

26-01-2018

First Step:Round 28 which is 30
Second Step:Add 200+220=420
Third Step:Divide 30 into 420 =14

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